# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1439672211 -7200
# Node ID 0549289186cde22e9ea191ceeb3776857e7da6a4
# Parent  7e307171a752ac856c9ffdf50862fc81e93aa5b0
Accumulate and return errors found for invalid datetimes.

diff -r 7e307171a752 -r 0549289186cd imiptools/client.py
--- a/imiptools/client.py	Fri Aug 14 00:44:53 2015 +0200
+++ b/imiptools/client.py	Sat Aug 15 22:56:51 2015 +0200
@@ -429,10 +429,10 @@
         for period in self.obj.get_periods(tzid):
             start = period.get_start()
             end = period.get_end()
-            start_result = self.check_resolution(start, resolution)
-            end_result = self.check_resolution(end, resolution)
-            if start_result or end_result:
-                invalid.append((period.origin, start_result, end_result))
+            start_errors = self.check_resolution(start, resolution)
+            end_errors = self.check_resolution(end, resolution)
+            if start_errors or end_errors:
+                invalid.append((period.origin, start_errors, end_errors))
 
         return invalid
 
@@ -444,15 +444,16 @@
             raise ValidityError
 
         hours, minutes, seconds = resolution
+        errors = []
 
         if hours and dt.hour not in hours:
-            return "hour"
+            errors.append("hour")
         if minutes and dt.minute not in minutes:
-            return "minute"
+            errors.append("minute")
         if seconds and dt.second not in seconds:
-            return "second"
+            errors.append("second")
 
-        return None
+        return errors
 
     # Object retrieval.